CN210559864U - Remove advanced oxidation of smelly material in drinking water and unite active carbon processing system - Google Patents
Remove advanced oxidation of smelly material in drinking water and unite active carbon processing system Download PDFInfo
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- CN210559864U CN210559864U CN201922206264.3U CN201922206264U CN210559864U CN 210559864 U CN210559864 U CN 210559864U CN 201922206264 U CN201922206264 U CN 201922206264U CN 210559864 U CN210559864 U CN 210559864U
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Abstract
The utility model discloses an advanced oxidation combined activated carbon treatment system for removing smelly substances in drinking water, which comprises a water inlet pipe, a centrifugal pump, a first flowmeter, a mixer, an ultraviolet reactor and an activated carbon tank which are connected in sequence; a hydrogen peroxide dosing barrel is arranged between the first flow meter and the mixer, and the water inlet pipe is communicated with the activated carbon tank through a second flow meter. Advanced oxidation technology decomposes H by means of activation by ultraviolet light2O2Generates hydroxyl free radical (OH), decomposes organic micropollutants and smelly substances in natural water body by means of strong oxidizing property of OH, and has simple operationLow cost, no by-product and the like.
Description
Technical Field
The utility model relates to a feedwater treatment field, concretely relates to get rid of advanced oxidation of smelly material in drinking water and use processing system and method of active carbon jointly.
Background
So far, the main characteristics of the whole water resource in China are that although the water quantity is very huge and is located in the sixth place of the world, the total occupied quantity of people is very deficient and is probably less than one fourth of the total occupied quantity of people in the world. Besides the limited total amount of water resources, the serious health and safety situation of water source environment is a prominent problem in the water supply industry of China.
The safety and the sanitation of drinking water are directly related to the health of human bodies. As surface runoff acts on various domestic, industrial and agricultural pollutants to enter water source water, the safety and the usability of drinking water are greatly threatened. The conventional treatment process of the drinking water comprises coagulation, precipitation, filtration and disinfection, the conventional water treatment process of the water supply mainly removes suspended matters, colloids, bacteria and the like in the water, soluble organic matters, smelly substances and inorganic salts are difficult to remove, and the conventional treatment process is far from sufficient for removing the organic matters, the smelly substances and the like in the water and needs to carry out advanced treatment.
Disclosure of Invention
In order to solve the problems, the utility model discloses a get rid of advanced oxidation of smelly material in drinking water and use processing system and method of active carbon jointly, advanced oxidation technique decomposes H with the help of the activation of ultraviolet ray2O2Generates hydroxyl free radical (. OH), decomposes organic micro pollutants and odor substances in the natural water body by means of the strong oxidizing property of the. OH, and has the advantages of simple operation, low price, no generation of byproducts and the like.
The advanced oxidation combined activated carbon treatment system for removing odor substances in drinking water comprises a water inlet pipe, a centrifugal pump, a first flowmeter, a mixer, an ultraviolet reactor and an activated carbon tank which are sequentially connected; a hydrogen peroxide dosing barrel is arranged between the first flow meter and the mixer, and the water inlet pipe is communicated with the activated carbon tank through a second flow meter.
Preferably, the inlet of the activated carbon canister is provided with a multi-way valve, and the multi-way valve is respectively communicated with the ultraviolet reactor, the second flowmeter and the water outlet pipe.
Preferably, the multi-way valve is communicated with an emptying pipe.
Preferably, an activated carbon filter material and a pebble supporting layer are arranged in the activated carbon tank from top to bottom.
Preferably, the hydrogen peroxide dosing barrel is driven by a dosing pump.
Preferably, the mixer is a static tubular mixer.
The utility model has the advantages that:
1）H2O2the hydroxyl free radicals generated by decomposition under the action of ultraviolet light can non-selectively oxidize organic micro-pollutants contained in water and have the disinfection function.
2）UV/H2O2The combination of advanced oxidation and active carbon filtering process can reduce the dosage and retention time, and the active carbon can adsorb excessive H2O2Residual H2O2Can promote the regeneration of the active carbon to a certain extent and prolong the service life of the active carbon.
3）UV/H2O2The BAC combined process can be directly connected with the conventional process, has simple process and short flow, and can flexibly adjust the ultraviolet intensity and H according to the change of the water quality of inlet water2O2The process parameters such as the adding amount, the hydraulic retention time, the activated carbon filtration rate and the like, thereby achieving the unification of high efficiency and economy.
4）UV/H2O2The method has the advantages of high reaction rate for removing smelly substances, short reaction time, almost instant completion, no need of newly-built structures such as a contact tank and the like, small occupied area and less one-time investment.
5) The utility model discloses make normally handle a centrifugal pump of intaking and back flush water sharing, practiced thrift the resource.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the water treatment process of the present invention;
FIG. 2 is a schematic view of the apparatus of the present invention;
in the figure: 1. a water inlet pipe; PVC-U valve; 3. a centrifugal pump; 4. a first flow meter; 5. a dosing pump; 6. a hydrogen peroxide dosing barrel; 7. a mixer; 8. an ultraviolet reactor; 9. a second flow meter; 10. a multi-way valve; 11. an active carbon filter material; 12. a pebble bearing layer; 13. an activated carbon canister; 14. a water outlet pipe; 15. and (6) emptying the pipe.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-2, the treatment system is divided into two processes, namely an advanced oxidation process and a backwashing process, which are described in detail below:
1) advanced oxidation process
After being treated conventionally, raw water enters a flowmeter 4 through a water inlet pipe 1 and a centrifugal pump under the action of the centrifugal pump 3; the hydrogen peroxide dosing barrel 6 enables hydrogen peroxide solution and raw water to be converged under the action of the dosing pump 5 and then flows into the static tubular mixer 7 to be mixed, the mixed raw water enters the ultraviolet reactor 8 to be subjected to advanced oxidation reaction to remove odor substances, the reacted raw water enters the activated carbon tank 13 through the multi-way valve 10 to be filtered, the activated carbon tank is provided with an activated carbon filter material 11 and a pebble supporting layer 12 at the bottom, the activated carbon filter material can remove residual hydrogen peroxide in water and simultaneously prolongs the regeneration period due to the adsorption of the hydrogen peroxide, in addition, the activated carbon further removes trace organic matters in the water, the strong oxidation property of advanced oxidation, the biological action and the adsorption effect of the activated carbon are fully utilized, the problem of byproducts such as bromate is effectively avoided, and finally treated water flows out from the water outlet pipe 14.
2) Backwash process
Raw water enters a flow meter 9 through a water inlet pipe 1 and the centrifugal pump under the action of a centrifugal pump 3, the flow meter controls the back flushing flow, a multi-way valve 10 is adjusted to enable the back flushed raw water to flow into an activated carbon tank 13, back flushing water reversely passes through a pebble supporting layer 12 and an activated carbon filter material 11 from bottom to top, so that the filter layer is expanded to be fluidized, impurities trapped in the filter material layer are stripped from the surface of the filter material under the double effects of water flow shearing force and collision friction among filter material particles, then are taken out from a water outlet pipe 14 by the flushing water, and the back flushing strength is controlled in the back flushing process to prevent carbon leakage.
PVC-U valves 2 for controlling the on-off of the pipelines are arranged in each pipeline, the multi-way valves are communicated with a drain pipe 15, and rollers are arranged at the bottom of the whole sewage treatment device, so that the whole sewage treatment device can be conveniently moved among various occasions.
The process principle of applying the system to treat sewage is as follows:
1) advanced oxidation reaction section
Raw water enters the system under the action of the centrifugal pump, and the normal treatment water inlet and the backwashing water inlet share one centrifugal pump, so that resources are saved. An annular return pipeline is arranged around the centrifugal pump for avoiding cavitation, and when the system is started, intermittently operated or operated at low load, the circulating bypass is opened to make part of the feed water pass through the bypassDirectly returns to the water tank, increases the flow rate of the centrifugal pump, and avoids cavitation of the water supply pump. Controlling the inflow rate of water through a flowmeter; h2O2The medicine adding barrel enables the H to be in a state of being under the action of the medicine adding pump2O2The solution flows into a static tubular mixer for mixing H2O2The mixed liquid generates flow direction change through the spiral blades in the pipeline, and turbulence phenomenon occurs, so that the mixing efficiency is improved. The mixed liquid enters an ultraviolet reactor to carry out advanced oxidation reaction to remove odor substances and organic matters in water, UV has certain destructive effect on the odor substances and the organic matters, and H is2O2OH is generated under the irradiation of ultraviolet light, the oxidation-reduction potential of the OH is 2.80V and is much higher than that of other chemical oxidants, and the OH has stronger oxidation effect on various organic pollutants in water. In UV/H2O2In the process of removing pollutants in water by advanced oxidation, H2O2OH reacts with smelly substances and organic molecules without selectivity, unsaturated bonds of the smelly substances and the organic molecules are mainly attacked or hydrogen-capturing reaction is carried out on C-H bonds, particularly α sites of pi bonds, amino groups, ethers, thioethers and carboxyl in the organic molecules are attacked to generate carbonium ions, the carbonium ions react with the oxygen molecules to form peroxy radicals, the peroxy radicals are broken to form oxy radicals, then the oxo radicals are broken continuously to generate other free radicals and stable intermediate products, and the intermediate products are oxidized into micromolecular organic matters which are easy to be adsorbed and degraded by active carbon.
UV and its excited H2O2OH generated has disinfection, and can inhibit and extinguish pathogenic microorganisms such as bacteria, yeast, fungi, viruses, spores, amphibia (giardia and cryptosporidium) and the like, and ultraviolet light with the wavelength of 254nm destroys the DNA structure of microorganisms in water, so that the microorganisms cannot reproduce, the pathogenic capability is lost, and the disinfection purpose is realized; OH directly oxidizes the outer layer structure of the bacterial cell, changes the selective permeability of the cell, destroys the balance of the substances inside and outside the bacterial cell, and leads toCausing the death of the bacteria; OH or active oxygen, etc. H2O2The decomposition products of (a) directly react with bacterial proteins and nucleic acids, destroying their structure and leading to the death of microorganisms.
2) Biological activated carbon filter part
The water after the advanced oxidation treatment of the ultraviolet reactor enters a biological activated carbon tank through a multi-way valve of the activated carbon. The biological activated carbon technology takes activated carbon as a carrier, and under a proper growth condition, microorganisms grow to form an active biological film attached to the surface of the activated carbon, so that the biological activated carbon is generated, the physical adsorption effect of the activated carbon can be exerted, and the biological degradation effect of the surface biological film can be fully utilized to remove organic matters and odor substances. UV/H2O2When the activated carbon is used together with the filtering process of the activated carbon, the dosage and the retention time can be reduced, and the activated carbon can adsorb excessive H2O2Residual H2O2Can promote the regeneration of the active carbon to a certain extent and prolong the service life of the active carbon. The biodegradation of the active carbon can remove organic matters which are generated by advanced oxidation and are easy to be biodegraded; meanwhile, the problems of byproducts such as bromate and the like are effectively avoided due to the biological action and the adsorption action of the activated carbon.
UV/H2O2The BAC combined process can be directly connected with the conventional process, has simple process and short flow, and can flexibly adjust the ultraviolet intensity and H according to the change of the water quality of inlet water2O2The process parameters such as the adding amount, the hydraulic retention time, the activated carbon filtration rate and the like, thereby achieving the unification of high efficiency and economy.
UV/H2O2Advanced oxidation technology decomposes H by means of activation by ultraviolet light2O2Generates hydroxyl free radical OH, decomposes organic micropollutants in natural water body by means of strong oxidizing property of OH, and has the advantages of simple operation, low price, no byproduct generation and the like. UV/H2O2The activated carbon can be used together with activated carbon for removing residual H in water2O2While due to adsorption of H2O2And the regeneration period is prolonged, in addition, the activated carbon further removes trace organic matters in the water,the strong oxidizing property of advanced oxidation, the biological action and the adsorption action of activated carbon are fully utilized, the problem of byproducts such as bromate and the like is effectively avoided, and the method is a combined process with better advanced treatment of drinking water at present.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The advanced oxidation combined activated carbon treatment system for removing odor substances in drinking water is characterized by comprising a water inlet pipe, a centrifugal pump, a first flowmeter, a mixer, an ultraviolet reactor and an activated carbon tank which are sequentially connected; a hydrogen peroxide dosing barrel is arranged between the first flow meter and the mixer, and the water inlet pipe is communicated with the activated carbon tank through a second flow meter.
2. The advanced oxidation combined activated carbon treatment system for removing smelly substances in drinking water as claimed in claim 1, wherein the inlet of the activated carbon canister is provided with a multi-way valve, and the multi-way valve is respectively communicated with the ultraviolet reactor, the second flowmeter and the water outlet pipe.
3. The advanced oxidation combined activated carbon treatment system for removing smelly substances in drinking water as claimed in claim 2, wherein the multi-way valve is communicated with an emptying pipe.
4. The advanced oxidation combined activated carbon treatment system for removing smelly substances in drinking water as claimed in claim 1, wherein an activated carbon filter material and a pebble support layer are arranged inside the activated carbon canister from top to bottom.
5. The advanced oxidation combined activated carbon treatment system for removing smelly substances in drinking water as claimed in claim 1, wherein the hydrogen peroxide dosing barrel is driven by a dosing pump.
6. The advanced oxidation coupled activated carbon treatment system for removing odorous substances from drinking water as claimed in claim 1, wherein the mixer is a static tubular mixer.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112939189A (en) * | 2021-02-20 | 2021-06-11 | 同济大学 | Ultraviolet advanced oxidation device for building water supply pretreatment |
| CN112939302A (en) * | 2021-02-20 | 2021-06-11 | 同济大学 | Building water supply pretreatment device based on ultraviolet chlorine advanced oxidation |
| CN114315014A (en) * | 2021-12-15 | 2022-04-12 | 清华苏州环境创新研究院 | Sewage treatment device and method for in-situ generation of hydrogen peroxide coupled with ultraviolet generator |
-
2019
- 2019-12-11 CN CN201922206264.3U patent/CN210559864U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112939189A (en) * | 2021-02-20 | 2021-06-11 | 同济大学 | Ultraviolet advanced oxidation device for building water supply pretreatment |
| CN112939302A (en) * | 2021-02-20 | 2021-06-11 | 同济大学 | Building water supply pretreatment device based on ultraviolet chlorine advanced oxidation |
| CN114315014A (en) * | 2021-12-15 | 2022-04-12 | 清华苏州环境创新研究院 | Sewage treatment device and method for in-situ generation of hydrogen peroxide coupled with ultraviolet generator |
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